...oh, and they also should want to work with us. We have a few positions open we want to fill with people that have a good sense of humour, have some geek qualities, and can tell the difference between a diode and resistor (or sincerely want to learn!) Here are the types of people we're […]
Circuit: Stepper Motor
Dave Hrynkiw
July 12, 2007
This is a neat little one-chip circuit we originally tuned for use with our "SM1" Stepper motors. We've presently sold out of the motor, but this circuit has proved to be a good unidirectional (1-way) driver for small stepper motors. Parts required are:
- 74AC240 Octal buffer chip
- 4 x CP0.1µF capacitors
- 100k resistor
- 2 x 47k resistors
MORE POSTS
Minor Additions and New Links
Boy, there's work to do on new websites. Link checking, spell checking, image links - all sorts of crap that doesn't have anything to do directly with robots! Even so, we've been able to put up a few new images of Mark Tilden's "Projectorbots" on the Photovores page. Yuck. Must do something about how hard […]
Monday New Product: Solder and Grove
Lead-free Solder Spool (100g) $9.55 Solder, without lead! Adapter, 9VDC @ 1A $6.79 This Adapter, 9V @ 1A is a economical power transformer. Grove - Universal 4 Pin 20cm Unbuckled Cable (5 PCs Pack) $3.78 Extra cables for Grove modules. Seeed Grove - 3-Axis Digital Accelerometer $35.75 The H3LIS331DL is a low power high performance […]
New Kit!The Hex Pummer
View our newest kit we have online, the Hex Pummer, a very amusing night display that is charged by the sun. When the lights go out, it triggers the high intensity LEDs to start flashing on and off. They start out very STRONG and then fade away until the next LED "PUMMS" on. These amusing […]
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Warning: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
Please visit www.P65Warnings.ca.gov for more information. This item was manufactured prior to August 31, 2018.